FKIE_CVE-2025-30360

Vulnerability from fkie_nvd - Published: 2025-06-03 18:15 - Updated: 2025-11-21 18:26
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Summary
webpack-dev-server allows users to use webpack with a development server that provides live reloading. Prior to version 5.2.1, webpack-dev-server users' source code may be stolen when you access a malicious web site with non-Chromium based browser. The `Origin` header is checked to prevent Cross-site WebSocket hijacking from happening, which was reported by CVE-2018-14732. But webpack-dev-server always allows IP address `Origin` headers. This allows websites that are served on IP addresses to connect WebSocket. An attacker can obtain source code via a method similar to that used to exploit CVE-2018-14732. Version 5.2.1 contains a patch for the issue.
References
security-advisories@github.comhttps://github.com/webpack/webpack-dev-server/blob/55220a800ba4e30dbde2d98785ecf4c80b32f711/lib/Server.js#L3113-L3127Product
security-advisories@github.comhttps://github.com/webpack/webpack-dev-server/commit/5c9378bb01276357d7af208a0856ca2163db188ePatch
security-advisories@github.comhttps://github.com/webpack/webpack-dev-server/commit/72efaab83381a0e1c4914adf401cbd210b7de7ebPatch
security-advisories@github.comhttps://github.com/webpack/webpack-dev-server/security/advisories/GHSA-9jgg-88mc-972hExploit, Vendor Advisory
Impacted products
Vendor Product Version
webpack.js webpack-dev-server *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:webpack.js:webpack-dev-server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "16C3C1AC-AB15-456C-831A-A7F07FE7B88C",
              "versionEndExcluding": "5.2.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "webpack-dev-server allows users to use webpack with a development server that provides live reloading. Prior to version 5.2.1, webpack-dev-server users\u0027 source code may be stolen when you access a malicious web site with non-Chromium based browser. The `Origin` header is checked to prevent Cross-site WebSocket hijacking from happening, which was reported by CVE-2018-14732. But webpack-dev-server always allows IP address `Origin` headers. This allows websites that are served on IP addresses to connect WebSocket. An attacker can obtain source code via a method similar to that used to exploit CVE-2018-14732. Version 5.2.1 contains a patch for the issue."
    },
    {
      "lang": "es",
      "value": "webpack-dev-server permite a los usuarios usar webpack con un servidor de desarrollo que proporciona recarga en tiempo real. Antes de la versi\u00f3n 5.2.1, el c\u00f3digo fuente de los usuarios de webpack-dev-server pod\u00eda ser robado al acceder a un sitio web malicioso con un navegador que no fuera Chromium. El encabezado \"Origin\" se verifica para evitar el secuestro de WebSockets entre sitios, reportado por CVE-2018-14732. Sin embargo, webpack-dev-server siempre permite los encabezados \"Origin\" de direcciones IP. Esto permite que los sitios web que se sirven en direcciones IP se conecten a WebSockets. Un atacante puede obtener el c\u00f3digo fuente mediante un m\u00e9todo similar al utilizado para explotar CVE-2018-14732. La versi\u00f3n 5.2.1 incluye un parche para este problema."
    }
  ],
  "id": "CVE-2025-30360",
  "lastModified": "2025-11-21T18:26:18.640",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-06-03T18:15:25.410",
  "references": [
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      "tags": [
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      ],
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    {
      "source": "security-advisories@github.com",
      "tags": [
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        "Vendor Advisory"
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      "url": "https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-9jgg-88mc-972h"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.